Files
ack-tegra/include/linux
Jean-Christophe PLAGNIOL-VILLARD 7431798490 of_spi: add generic binding support to specify cs gpio
This will allow to use gpio for chip select with no modification in the
driver binding

When use the cs-gpios, the gpio number will be passed via the cs_gpio field
and the number of chip select will automatically increased with max(hw cs, gpio cs).

So if for example the controller has 2 CS lines, and the cs-gpios
property looks like this:

cs-gpios = <&gpio1 0 0> <0> <&gpio1 1 0> <&gpio1 2 0>;

Then it should be configured so that num_chipselect = 4 with the
following mapping:

cs0 : &gpio1 0 0
cs1 : native
cs2 : &gpio1 1 0
cs3 : &gpio1 2 0

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: devicetree-discuss@lists.ozlabs.org
Cc: spi-devel-general@lists.sourceforge.net
Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
[grant.likely: fixed up type of cs count so min() can do type checking]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-11-21 23:25:33 +00:00
..
2012-10-08 13:50:20 +10:30
2012-09-20 14:31:45 +02:00
2012-10-16 18:49:15 -07:00
2012-09-26 21:10:00 -04:00
2012-10-16 13:37:17 -04:00
2012-10-06 03:04:56 +09:00
2012-09-26 13:52:36 -07:00
2012-10-10 01:15:44 -04:00
2012-10-09 16:22:54 +09:00
2012-10-09 16:23:00 +09:00
2012-10-10 20:00:55 +10:30
2012-10-17 15:53:02 -05:00
2012-10-10 22:41:05 -04:00
2012-10-05 22:23:53 +02:00
2012-10-11 08:50:16 +09:00
2012-10-06 03:05:01 +09:00
2012-09-27 12:45:28 +02:00
2012-10-11 20:02:04 -04:00
2012-10-07 00:40:54 -04:00
2012-10-09 16:22:55 +09:00
2012-10-22 15:16:06 -04:00
2012-10-09 16:22:32 +09:00
2012-10-07 21:19:42 +02:00
2012-10-17 11:16:13 -07:00